<link href="https://unpkg.com/aos@2.3.1/dist/aos.css" rel="stylesheet">
<script src="https://unpkg.com/aos@2.3.1/dist/aos.js"></script>
<style>
    body, html {
        margin: 0;
        padding: 0;
        font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    }

    a {
        color: #5a5a5a;
        text-decoration: none;
    }

    a:hover {
        color: #ff8200;
    }

    .text-align-left {
        text-align: left;
    }

    .text-align-right {
        text-align: right;
    }

    .text-align-center {
        text-align: center;
    }

    ul, li {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .container {
        max-width: 1100px;
        margin: 0 auto;
    }

    .header-fixed {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        z-index: 999;
        background: #fff;
    }

    .bar {
        width: 100%;
        background-color: #fcfcfc;
        border-bottom: 1px solid #e4e4e4;
        padding: 5px 0;
    }

    .bar .container {
        display: flex;
        justify-content: space-between;
    }

    .bar .lang ul {
        display: flex;
        align-items: center;
        margin-right: 20px;
    }

    .bar .lang ul li {
        margin-left: 10px;
    }

    .bar .lang ul li img {
        width: 20px;
    }

    .nav {
        width: 100%;
        padding: 20px 0;
    }

    .nav .container {
        display: flex;
        justify-content: space-between;
    }

    .nav .container .logo img {
        width: 100px;
    }

    .nav .container .nav-list {
        display: flex;
        align-items: center;
        position: relative;
    }

    .nav .container .nav-list li.main-nav {
        list-style: none;
        padding: 0 10px;
        cursor: pointer;
        width: 110px;
        text-align: right;
    }

    .nav .container .nav-list li.main-nav a {
        color: #000000;
        text-decoration: none;
    }

    .nav .container .nav-list li.main-nav a:hover {
        color: #000000;
        opacity: .7;
    }

    .nav .container .nav-list .box {
        position: absolute;
        top: 60px;
        width: 92%;
        height: 200px;
        border-bottom: 0 solid rgb(224, 224, 224);
        box-shadow: 0 3px 4px rgba(0, 0, 0, 0.18);
        padding: 20px 20px;
        text-align: left;
        background-color: #ffffff;
    }

    .nav .container .nav-list .box ul {
        display: flex;
    }

    .nav .container .nav-list .box li.item {
        display: flex;
        flex-direction: column;
        flex-grow: 1;
    }

    .nav .container .nav-list .box .title {
        font-size: 14px;
        padding: 10px 20px 20px;
        font-weight: bold;
    }

    .nav .container .nav-list .box .sub-nav {
        padding: 10px 20px;
    }

    .banner {
        height: 668px;
        opacity: 1;
        position: relative;
    }

    .banner .image {
        position: absolute;
        width: 100%;
        height: 100%;
        z-index: -1;
    }

    .banner .container {
        max-width: 1100px;
        margin: 0 auto;
        display: flex;
        flex-flow: column;
    }

    .banner .title {
        font-size: 40px;
        color: rgb(255, 130, 0);
        margin-top: 200px;
    }

    .banner .desc {
        font-size: 20px;
        line-height: 170%;
        letter-spacing: 2px;
        margin-top: 20px;
        width: 300px;
    }

    .banner .href {
        color: rgb(255, 130, 0);
        font-size: 20px;
        line-height: 170%;
        letter-spacing: 2px;
        margin-top: 20px;
    }

    .banner .href a {
        color: rgb(255, 130, 0);
        text-decoration: underline;
    }

    .book {
        font-size: 18px;
        text-align: center;
        color: #FFFFFF;
        background-color: rgb(255, 130, 0);
        opacity: 1;
        display: flex;
        flex-flow: column;
        padding: 40px 0;
    }

    .book .button {
        background: rgba(255, 87, 0, 1);
        border-radius: 5px;
        border: 1px solid #fff;
        padding: 10px 50px;
        max-width: 200px;
        margin: 20px auto 0;
        cursor: pointer;
    }

    .book .button a{
        color: #FFFFFF;
    }

    .about {
        font-size: 18px;
        text-align: center;
        color: #666666;
        opacity: 1;
        display: flex;
        flex-flow: column;
        padding: 40px 0;
    }

    .about .button {
        background: #ffffff;
        border-radius: 5px;
        border: 1px solid #000000;
        padding: 10px 50px;
        max-width: 200px;
        margin: 20px auto 0;
        cursor: pointer;
    }

    .product .item {
        width: 100%;
        display: flex;
        flex-flow: row;
        justify-content: space-between;
        margin-top: 100px;
    }

    .product .item .images {
        width: 50%;
    }

    .product .item .images img {
        width: 100%;
        height: auto;
    }

    .product .item .content {
        padding: 20px 0 20px 50px;
        width: 50%;
        display: flex;
        flex-flow: column;
    }

    .product .item .title {
        margin: 20px 0 20px;
        font-size: 33px;
        color: rgb(0, 0, 0);
    }

    .product .item .desc {
        line-height: 180%;
        font-size: 18px;
        text-align: justify;
        margin: 20px 0 20px;
    }

    .product .item .content .button {
        margin: 20px 0 20px;
    }

    .product .item .content .button a {
        color: #FFFFFF;
        background-color: rgba(255, 130, 0, 1);
        border-radius: 5px;
        padding: 10px 50px;
        max-width: 200px;

        cursor: pointer;
    }

    .ling {
        background-color: rgba(255, 130, 0, 1);
        color: #FFFFFF;
        padding: 40px 0;
        text-align: center;
    }

    .ling .title {
        font-size: 42px;
        margin: 20px 0;
    }

    .ling .item {
        width: 25%;
    }

    .ling .image img {
        width: 100%;
    }

    .ling .item .href {
        margin: 10px;
    }

    .ling .item a {
        color: #FFFFFF;
        font-size: 16px;
    }

    .news {
        padding: 40px 0;
    }

    .news .container {
        display: flex;
        flex-direction: row;
        flex-grow: 1;
    }

    .news .container .item {
        text-align: center;
    }

    .news .container .item .icon {
        margin: 0 0;
    }

    .news .container .item .icon img {
        width: 35px
    }

    .news .container .item .title {
        padding: 10px 30px;
    }

    .news .container .item .desc {
        padding: 30px 80px;
    }

    .news .container .item .href {
        padding: 30px 30px;
    }

    .news .container .item .href a {
        background-color: rgba(230, 145, 56, 1);
        color: #FFFFFF;
        padding: 5px 20px;
        border-radius: 5px;
    }

    .footer {
        background: rgb(67, 67, 67);
        color: rgb(204, 204, 204);
        font-size: 15px;
        line-height: 180%;
    }

    .footer .container {
        display: flex;
        flex-flow: row;
    }

    .footer .item {
        display: flex;
        flex-flow: column;
        width: 25%;
        padding: 20px 0;
    }

    .footer .item .title {
        font-size: 18px;
        margin-bottom: 20px;
    }

    .footer .item .href {
        margin-bottom: 10px;
    }

    .footer .item .href a {
        color: rgb(204, 204, 204);
    }

    .footer .item .href a:hover {
        color: rgb(255, 130, 0);
    }

    .footer2 {
        background: rgb(0, 0, 0);
        color: rgb(204, 204, 204);
        font-size: 15px;
        line-height: 180%;
        padding: 10px 0;
    }

    .footer2 .container div {
        width: 100%;
    }

    .footer2 .container div {
        width: 100%;
        padding: 0 0;
    }


    .page-header {
        width: 100%;
        height: 500px;
        position: relative;
    }

    .page-header .bg {
        width: 100%;
        height: 100%;
        background-size: cover;
        background-position: center;
        position: absolute;
        top: 0;
        left: 0;
        z-index: -1;
    }

    .page-header .container {
        width: 100%;
        height: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
        padding-left: 100px;
    }

    .page-header .title {
        font-size: 50px;
        color: #fff;
        font-weight: bold;
    }

    .page-content {
        width: 100%;
        height: 100%;
        padding: 50px 0;
    }

    .page-content .container {
        width: 100%;
        height: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
    }

    .product-list {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: space-between;
        width: 100%;
    }

    .product-list .product-item {
        text-align: center;
        width: 33.33%;
        margin-top: 10px;
        margin-bottom: 20px;
    }

    .product-list .product-item .border {
        margin: 10px;
        border: 1px solid #ccc;
        border-radius: 5px;
    }

    .product-list .product-item .product-item-img {
        width: 100%;
        height: 300px;
        background-size: cover;
        background-position: center;
    }

    .product-list .product-item .product-item-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .product-list .product-item .product-item-info {
        text-align: center;
        width: 100%;
        background-color: #fff;
        padding: 10px;
        box-sizing: border-box;
    }

    .ling-list {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: space-between;
        width: 100%;
    }

    .ling-list .ling-item {
        text-align: center;
        width: 33.33%;
        margin-top: 10px;
        margin-bottom: 20px;
    }

    .ling-list .ling-item .border {
        margin: 10px;
        border: 1px solid #ccc;
        border-radius: 5px;
    }

    .ling-list .ling-item .ling-item-img {
        width: 100%;
        height: 300px;
        background-size: cover;
        background-position: center;
        position: relative;
    }

    .ling-list .ling-item .ling-item-img .ling-item-info {
        width: 100%;
        padding: 10px;
        box-sizing: border-box;
        position: absolute;
        top: 45%;
        text-align: center;
        font-size: 24px;
        color: #FFFFFF;
    }

    .ling-list .ling-item .ling-item-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }


    .news-list {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: space-between;
    }

    .news-list .news-item {
        text-align: left;
        width: 33.33%;
        margin-top: 10px;
        margin-bottom: 20px;
    }

    .news-list .news-item .border {
        margin: 20px 30px;
        border-radius: 5px;
    }

    .news-list .news-item .news-item-img {
        width: 100%;
        height: 200px;
        background-size: cover;
        background-position: center;
    }

    .news-list .news-item .news-item-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .news-list .news-item .news-item-info1 {
        text-align: left;
        width: 100%;
        background-color: #fff;
        padding: 10px 0;
        box-sizing: border-box;
        font-weight: bold;
    }

    .news-list .news-item .news-item-info2 {
        text-align: left;
        width: 100%;
        background-color: #fff;
        padding: 10px 0;
        box-sizing: border-box;
        opacity: .5;
    }

    .news-list .news-item .news-item-info3 {
        text-align: left;
        width: 100%;
        background-color: #fff;
        padding: 10px 0;
        box-sizing: border-box;

    }

    .news-list .news-item .news-item-info3 a {
        color: rgb(242, 112, 12);
    }

    .download-list {
        width: 100%;
    }

    .download-item {
        margin-bottom: 20px;
        width: 100%;
    }

    .download-link {
        display: flex;
        transition: all .3s;
        justify-content: space-between;
    }


    .download-title {
        font-size: 20px;
        font-weight: bold;
        color: #333;
        margin-bottom: 10px;
    }

    .download-desc {
        font-size: 14px;
        color: #666;
    }

</style>
